Process of producing embroidered fabrics



May 16, 1933. R. LOEB PROCESS OF PRODUCING EMBROIDERED FABRICS Filed Oct. 28, 1927 INVENTOR: Ruaolj 1,061,,

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Patented May 16, 1933 ITED ES armour 1.01:3; or vmrrnoa, new JERSEY raocass or raonncine misaomnaanraaarcs Application filed October 28, 1927.1 Serial No. 229,347.

, with respect to each other in groups successively produced. v

In carrying out my invention, I employ a sewing machine of the so-called zigzag type, that is tosay a machine employing asingle needle which is vibrated laterally with respect to the line of stitching,,so that each stitch produced lies in a diagonal-position with respect to the adjoining and connected stitches.

In preparing this ornamental edging, the edge of the fabric may be folded by suitable guiding means before presentation to the needle, and in such folding operation the inner marginal edge of the folded portion may be turned under. The zigzag stitching is ap-' plied in a line substantially parallel to'the folded edge so that the turned under portion will be secured by the stitches; that is to say, the line of stitches substantiallyfollows' the inner margin ofthe folded edge portion. In

the ordinary operation of the zigzag sewing machine,the face of the fabric would simply receive a-row or line of zigzag stitches secur in place, and one object of my invention is to form this folded marginal edge into a series of scallops.

As is well understood, the needle of zigzag sewing machines vibrates in a short path at right angles to the general line of the stitching produced, and with the usual means provided to advance or feed the trance of the needle into the goods at theopposite sides of the line of stitching is always in advance of the precedin by producing the zigzag e ect.

the, folded marginal edge of the fabric in goods, the enentrance there- In order that the scallop eifectformin g the subject of 'my'invention may be produced, I provide an oscillating blade arrangedto engage the edge of the fabric and move the sametoward the needle atre'gular or irregu lar intervals,'dependin upon the type of scallops desired. This ilademay'be soarranged and operated as to" hold the fabric in such position with respect to the'needlethat when the latter is making its loops with the shuttlefthread, certain stitches will pass outside of the folded edge of the fabric which has been indented by the blade,eand serve as overedging or binding stitches for suchfedge. -Asthe stitches engaging the'inr 7P. ATENT *orrlc dented portions-are under substantially the same tension as the other stitches, these binding or overedgingstitches will hold in the pinched portions of the edge of the fabric and produce the effect of a'scalloped edge. Various means coordinatin with the sewing machine mechanism may eemployed to present this creasing or pinching blade against the edge of the fabric at regular or irregular intervals but for illustrative purposes, I have indicated a cam member and levers which are so connected with the blade, with the cam path of such character, that such blade will be moved into engagement. withthe ed e'of the fabric at the proper intervals and eld temporarily until the necessrirydoveredging or binding stitches are app 1e p Any means that will serve to pinch or indent the edge of the fabric may be employed, such means holding the fabric in such position with res ect to the needle that the stitches applied by t e latter can overlie the edge of the pinched or indented portions, so as to are more fully described hereinafter;reference being had to the accompanying drawing, inwhich: Y Figure 1, illustrates a scalloped edge made in accordance with my invention, in which the indentations are formed at regular intervals, making scallops of substantially the same length.

Fig. 2, shows a series of scallops of unequal length, arranged in groups.

Fig. 3, shows one form of mechanism which may be employed in carrying my invention into effect, and

Fig. 4 illustrates a modified form of scam within the scope of my invention.

In-Figs. 1 and E2, the fabric is indicated at A, and its edge, which may be folded, is indicated ata. This folded edge is scalloped as clearly indicated in the drawing; such scallops being indicated at A, and these scallopsare produced by tucking or indenting the folded edge at intervals, .and catching in and holding such indented portions by certain of the stitches.

The edge a, folded or otherwise, is sewn down by a row of zigzag stitches, indicated at l, and when these stitches are applied at an indented point of the edge, they will overlie said edge, as indicated at 1, andtheir tension will hold the indented portion of the edge and produce the simulation of scallops.

The indenting of the folded edge may be effected by any suitable means that will press such folded edge toward the needle 2 apply ing the line of zigzag stitches which are applied in a substantially straight line, so that certain of the latter may pass outside the fabric at the indented portions of the edge, asclearly indicated at 1 In the present instance I have provided a pivoted arm 5, having a bladed end 5, ar-' ranged to lie adjacent to the edge a of the fabricas it is delivered by the guide 6, folded or otherwise, with means for moving this bladed end against the edge a, at intervals. In the oresent instance such means may consist of a cam 7, pivotally mounted upon the bed plate of the machine, having a groove 7 engaged by a-roller8, carried by a lever 9 pivoted at 9 the opposite end ofv such lever being connected at 9 to the slotted and cranked end 5 of the arm 5, which is pivotally mounted at 1.0 upon the bed plate of the machine. In lieu of this llltTCllfUllSll'l, any suitable form of pattern mechanism may be employed which will serve to move the arm 5, so as to cause its bladed end FHto press the edge a of the fabric toward the needle 2, at the desired in tervals.

In order that the edge of the fabric when in a folded condition may be held in a relatively distended state as it is fed from a fflld. ing guide to the needle, so as to respond to the indenting by the bladed arm, such foldin guide ma'ycarry a spring linger 6, which lies within the folded edge of the fabric at the point of delivery from the folding guide, and extends to a point just short of thez'one of sewing operations effected by the needle 2.

It will be understood, of course, that the means for producing this scalloped edge effect does not affect the operation of the zigzag sewing machine, which is free to perform the usual operation of zigzag stitching without producing the scalloped effect referred to, by simple disconnection of the mechanism employed to indent the folded edge of the fabric.

In Figs. 1 and 2 I have shown instances of scalloped edges produced by indenting the edge of a fabric and holding the same by certain of the zigzag stitches. In Fig. at I have shown an instance of an applied edge of a11- otherstrip of fabric of a different color which is turned over the edge of the main fabric; the edge strip being indicated at ac, and the main fabric at AA.

I claim:

1. The method of ornamcntin g the edges of fabrics which consists in folding such edge, continuously applying a row of zigzag stitches; substantially paralleling said folded edge; said stitches serving to retain the edge in foldedv condition, indenting said edge at regular intervals sinniltaneously with the stitching operation and during continuous feed of the fabric whereby certain of the stitches of the continuous zigzag row are caused to ovenie the fabric at the indented portions thereof and hold the same in indent ed colnlition Whcrcbya scalloped edge is produced, and maintaining said edge under tension during the indenting o Jeration.

E2. The method of ornamenting the edges of fabrics which consists in folding such edge and guiding the same in folded condition, cmitinuously feeding said folded edge and sinn'iltancously applying a row of zigzag stitchcssubstantially paralleling said folded edge; said stitches serving to retain the edge in, folded condition, indenting said edge at regular intervals simultaneously with the stitching o n-iration in advance of the needle operation and during continuous feed. of the fabric whereby certain of the stitches of the continuous zigzag row are caused to overlie the fold ed edge of the fabric at the indent-ed portions thereof and hold the same in indented condition whereby a scalloped ed go is prodnced; saidedgc being maintained under yielding tension during the indenting operzn tion.

In witness whereof I have signed this spec i ii cation.

RUDOLF LOEB. 

